/* ==========================================================================
   ShopSphere - Authentication Pages (login.html, register.html, admin-login.html)
   ========================================================================== */

.auth-page {
  min-height: calc(100vh - var(--header-height) - 180px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 50px 20px;
}

.auth-card {
  width: 100%;
  max-width: 480px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 40px;
  position: relative;
}

.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

.auth-header .brand-logo {
  justify-content: center;
  margin-bottom: 14px;
}

.auth-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Demo Credentials Quick-Fill Box */
.demo-credentials-box {
  background-color: var(--primary-blue-subtle);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 24px;
}

.demo-credentials-box .demo-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 10px;
}

.demo-buttons-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-fill-demo {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-fill-demo:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  background-color: #ffffff;
}

/* Form Controls */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 0.95rem;
  pointer-events: none;
}

.form-input {
  width: 100%;
  height: 44px;
  padding: 0 14px 0 42px;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  background-color: var(--bg-surface);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-input.has-error {
  border-color: var(--accent-rose);
}

/* Password Toggle Icon Button */
.password-toggle-btn {
  position: absolute;
  right: 12px;
  color: var(--text-muted);
  padding: 6px;
  font-size: 0.95rem;
}

.password-toggle-btn:hover {
  color: var(--text-main);
}

.input-error-msg {
  font-size: 0.8rem;
  color: var(--accent-rose);
  margin-top: 4px;
  display: none;
}

.input-error-msg.visible {
  display: block;
}

/* Auth Footer Switch Link */
.auth-switch-prompt {
  text-align: center;
  margin-top: 24px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.auth-switch-prompt a {
  color: var(--primary-blue);
  font-weight: 700;
}

.auth-switch-prompt a:hover {
  text-decoration: underline;
}

/* Demo Notice Banner */
.demo-notice-alert {
  margin-top: 24px;
  padding: 12px 14px;
  background-color: var(--bg-muted);
  border-radius: var(--radius-md);
  font-size: 0.775rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: flex;
  gap: 10px;
}

.demo-notice-alert i {
  color: var(--primary-blue);
  font-size: 1rem;
  margin-top: 2px;
}